公开(公告)号：CZ277935B6

公开(公告)日：1993-06-16

申请号：CS389890

申请日：1990-08-07

Applicant: BASF AG

Inventor： TRAAUTMANN WALTER DR ,  FROEHLICH HELMUT DR ,  MILDNER WOLFGANG

IPC: C02F1/58 ,  C02F1/66 ,  C02F1/76 ,  C02F101/34 ,  C02F101/36 ,  C02F101/38 ,  C02F103/36 ,  C07D237/14 ,  C07D237/22

Abstract: A process for the separation and reutilisation of residual substances from the waste water of the synthesis of 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone I prepared from 4,5-dichloro-2-phenyl-3(2H)-pyridazinone II and ammonia, characterised in that the residues of the product I dissolved in the waste water together with the by-products a) 4-amino-5-chloro-2-phenyl-3(2H)-pyridazinone Ia and b) 4-chloro-5-hydroxy-2-phenyl-3(2H)-pyridazinone Ib are precipitated and isolated by acidifying the waste water and the mixture thus obtained is converted into 4,5-dichloro-2-phenyl-3(2H)-pyridazinone II using a chlorinating agent.

公开(公告)号：DE2060083A1

公开(公告)日：1972-06-15

申请号：DE2060083

申请日：1970-12-07

Applicant: BASF AG

Inventor： HIMMELE WALTER DR ,  FLIEGE WERNER DR ,  FROEHLICH HELMUT DR

IPC: C07C1/213 ,  C07C69/07

Abstract: is split off from a cpd. of formula: R4CH(OCHO)-C triple bond C-CR1R2R3 (where R1 is H, 1-6C alkyl or OCOR5; R2-R5 are H or 1-6C alkyl; and when R1 = OCOR5, R2 = H) by contacting at 140-260 degrees C with a finely-divided gp. Ib metal (pref. Cu) and/or Cd or Zn and/or Ni, Pd or Pb or Pt or a cpd. of these metals which liberate the free metal under the reaction conditions. The prodts. are alkynyl formates, alkynyl alkanoates, alkynes and the corresp. isomeric allenes. The prodts. are intermediates, e.g. for insecticides, acaricides, corrosion inhibitors, vitamin E and plant growth promoters.

公开(公告)号：DE3864779D1

公开(公告)日：1991-10-17

申请号：DE3864779

申请日：1988-08-06

Applicant: BASF AG

Inventor： HABERMANN WOLFGANG ,  HAMMES PETER DR ,  MESSLINGER REINHARD DR ,  MUNZINGER MANFRED ,  FROEHLICH HELMUT DR

IPC: G01N27/30

Abstract: Redox electrode for the determn. of HNO2 and nitrosyl cpds. in an aq. soln. has a metallic conductor core with an n-conducting metal oxide surface having a conductivity x=10 power -7 to 100 ohm. cm. The core consists of sub-gp. IV-VI metals. The oxide coating consists of (mixed) oxides of W, Mo, V, Ta or Ti and pref. is produced by anodic oxidn. of the core in aq. semi-conc. H2SO4 at room temp. to a thickness of over 100 Angstroms.

公开(公告)号：DE3926905A1

公开(公告)日：1991-02-21

申请号：DE3926905

申请日：1989-08-16

Applicant: BASF AG

Inventor： TRAUTMANN WALTER DR ,  FROEHLICH HELMUT DR ,  MILDNER WOLFGANG

IPC: C02F1/58 ,  C02F1/66 ,  C02F1/76 ,  C02F101/34 ,  C02F101/36 ,  C02F101/38 ,  C02F103/36 ,  C07D237/14 ,  C07D237/22

公开(公告)号：DE3328770A1

公开(公告)日：1985-02-28

申请号：DE3328770

申请日：1983-08-10

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  RENTZEA COSTIN DR ,  RICHARZ WINFRIED DR ,  FROEHLICH HELMUT DR ,  AMMERMANN EBERHARD DR ,  POMMER ERNST-HEINRICH DR

IPC: A01N43/58 ,  C07D237/18 ,  A01N41/02

Abstract: Pyridazinone derivatives of the formula I (I) where R1 is hydrogen, unsubstituted or substituted alkyl, cycloalkyl, or unsubstituted or substituted phenyl or is carboxyl, hydroxymethyl or -CH2O-COR3, where R3 is alkyl, or is -CH2O[CH2CH2O]pR4, where R4 is alkyl or phenyl and p is 1, 2 or 3, R2 is phenyl, unsubstituted or substituted vinyl or 2-propenyl, X is halogen, m is 1 or 2 and n is 1, 2, 3 or 4, and fungicides containing these compounds.

公开(公告)号：CZ389890A3

公开(公告)日：1993-02-17

申请号：CS389890

申请日：1990-08-07

Applicant: BASF AG

Inventor： TRAAUTMANN WALTER DR ,  FROEHLICH HELMUT DR ,  MILDNER WOLFGANG

IPC: C02F1/58 ,  C02F1/66 ,  C02F1/76 ,  C02F101/34 ,  C02F101/36 ,  C02F101/38 ,  C02F103/36 ,  C07D237/14 ,  C07D237/22

公开(公告)号：AT67311T

公开(公告)日：1991-09-15

申请号：AT88112830

申请日：1988-08-06

Applicant: BASF AG

Inventor： HABERMANN WOLFGANG ,  HAMMES PETER DR ,  MESSLINGER REINHARD DR ,  MUNZINGER MANFRED ,  FROEHLICH HELMUT DR

IPC: G01N27/30

公开(公告)号：DE3060595D1

公开(公告)日：1982-08-12

申请号：DE3060595

申请日：1980-09-04

Applicant: BASF AG

Inventor： RICHARZ WINFRIED DR ,  FROEHLICH HELMUT DR ,  SCHROEDER HARALD DR

IPC: A01N43/58 ,  A01P13/00 ,  C07D237/22

Abstract: The manufacture of substantially pure 4-amino-5-chloro-1-phenylpyridaz-6-one by reaction of 4,5-dichloro-1-phenylpyridaz-6-one with ammonia in the presence of phenol-4-sulfonic acid.

公开(公告)号：CZ9003898A3

公开(公告)日：1993-02-17

申请号：CS389890

申请日：1990-08-07

Applicant: BASF AG

Inventor： TRAAUTMANN WALTER DR ,  FROEHLICH HELMUT DR ,  MILDNER WOLFGANG

IPC: C02F1/58 ,  C02F1/66 ,  C02F1/76 ,  C02F101/34 ,  C02F101/36 ,  C02F101/38 ,  C02F103/36 ,  C07D237/14 ,  C07D237/22

CPC classification number: C07D237/22

公开(公告)号：DE3727384A1

公开(公告)日：1989-03-02

申请号：DE3727384

申请日：1987-08-17

Applicant: BASF AG

Inventor： HABERMANN WOLFGANG ,  HAMMES PETER DR ,  MESSLINGER REINHARD DR ,  MUNZINGER MANFRED ,  FROEHLICH HELMUT DR

IPC: G01N27/30

Abstract: Redox electrode for the determination of nitrous acid and nitrosyl compounds in aqueous acidic solution comprising a metallic conductor which has an n-type metal oxide surface.